Species Fact Sheets. Order: Gruiformes Family: Cariamidae Scientific Name: Cariama cristata Common Name: Red-legged seriema

Transcription

1 Order: Gruiformes Family: Cariamidae Scientific Name: Cariama cristata Common Name: Red-legged seriema AZA Management: Green Yellow Red None Photo (Male): Red-legged seriemas are identical in plumage although males are slightly larger and heavier and have taller crests. Most adult red-legged seriemas average between kg ( lb). Confirmation of sex should be confirmed via DNA. Photo (Female): Photo Credit Josh Caraballo NATURAL HISTORY: Geographic Range: Habitat: Europe Asia North America Neotropical Africa Australia Other Forest Desert Grassland Coastal Riverine Montane Other Circadian Cycle: Diurnal Crepuscular Nocturnal Other Cold Tolerance: To 70 F To 60 F To 50 F To 40 F To 30 F To 20 F Other Zoos in zones where temperatures fall below 0 C (32 F) should have winter holding facilities available for housing birds during inclement weather. Seriemas have succumbed to frostbite, and should be locked in heated shelters when temperatures are below 0 C (32 F). They should also be housed indoors during ASAG Species Fact Sheet Page 1

2 Heat Tolerance: Diet: Species Fact Sheets periods of freezing rain or snow as their loose plumage does not provide them adequate protection from such weather conditions. To 30 F To 50 F To 70 F To 90 F To 110 F Other During warm parts of the year and in warmer climates, shaded areas should be made available both on the ground and from above in the form of perching. Seriemas exhibiting heat stress will pant, and the ability to retreat to cooler areas of the pen is critical. Areas of full sun should be provided within seriema exhibits, as seriemas are frequent sunbathers. Sunning occurs on the ground, generally in areas with sandy substrate. Sunning seriemas often appear as if they are dead, so good exhibit interpretation is recommended to avoid dead bird reports. Frugivore Carnivore Piscivore Insectivore Nectivore Omnivore Folivore Other (Add Below) Captive Dietary Needs: From the limited data available, it appears that although seriemas are omnivorous, their dietary habits may be primarily insectivorous/carnivorous. Seriemas may be best adapted for an omnivorous/insectivorous feeding strategy. Small mice, raw meat, insects, egg, commercially available avian pellets are most commonly fed. Consult AZA Red-legged seriema Animal Care Manual for further information on dietary needs. Life Expectancy in the Wild: Males: Unknown but est 20+ years Females: Unknown but est 20+ years Life Expectancy in Captivity: Males: years based on studbook data Females: years based on studbook data BREEDING INFORMATION: Age at Sexual Maturity: Males: 8 months Females: 8 months Courtship Displays: The male initiates the breeding season by showing off his flight feathers to the female, stretching them to one side. The display is also accompanied by strutting in front of the female, with head pointed down and crest raised. The male often presents food (from the normal diet) to the female. Both of the birds call, thereby strengthening the bond between them as well as defining the territory of the pair. Copulation occurs on the ground. ASAG Species Fact Sheet Page 2

3 Nest Site Description: Clutch Size, Egg Description: Caretakers should provide a nest platform for seriemas that measures approximately 4 ft x 4 ft [1.2 m x 1.2 m] in diameter. The nest platform should be situated near existing bushes or small trees which will provide shade, privacy, and opportunities for chicks to leave the nest at the appropriate time. In the wild, seriemas nest 1 5 m (3 16 ft) off the ground (del Hoyo, 1996), so elevated nest platforms as high as the exhibit allows (while simultaneously allowing sufficient head room for a bird standing in a nest) should be provided for them to meet their desire to roost and nest at this level. A small mesh wire base (1 in x 1 in; 0.02 m x 0.02m) is adequate for the base and will provide a good foundation for the parents to build their nest as well as allow water to drain through. Commonly, 2 3 white, slightly spotted eggs are laid. Incubation is carried out by both sexes. Pairs sometimes eject the first clutch of the season, and some pairs are notorious for repeatedly ejecting eggs. It may often take several years for the pair to stop this behavior or even re-pairing of the birds to correct this problem. Incubation Period: 27 days Fledgling Period: days Parental Care: Chick Development: The chicks are covered in long light brown feathers and are fed by both parents; they initially weigh about g (1.4 2 oz). Their development is very fast. At birth, the eyes are open, but the chicks cannot stand. At 1 week, pinfeathers begin to emerge and chicks attempt to stand. As chicks approach 10 days, they are able to stand, and by 14 days may even leave the nest, although most chicks remain in the nest for 3 4 weeks. Even at this age, they can produce a call similar to the adult vocalization, although it is very faint and not as complex as the adult vocalization. Chicks are brooded by both their parents for the first 3 weeks of life. After 3 weeks of age, the juvenile birds roost in trees at night. Because they are unable to fly at this age, they should have perching positioned so that they can reach high roost sites at night. This is best accomplished by placing perches at various heights throughout the exhibit so that the young birds can jump from perch to perch to reach the desired height. At 3 months, the parents will start to wean their chicks by encouraging them to pick up food for themselves. By 3.5 months, chicks are nearly full-grown, although their plumage is still in juvenile form. At 4 5 months of age, chicks can be moved to their own enclosure or sent to other zoos. If chicks are left with their parents, keepers should watch to be sure the parents do not show aggression towards the chicks. Chicks should be removed from their parents several months before the start of the next breeding season (S. Hallager, personal communication). ASAG Species Fact Sheet Page 3

4 CAPTIVE HABITAT INFORMATION: Social Structure in the Wild: Social Structure in Captivity: Wild seriemas are most often seen alone or in pairs. Groups of three or more birds are most likely parents and offspring. In zoos, a male and female can be housed together year round. More than one pair of seriemas cannot be exhibited in the same enclosure, as they are extremely territorial. Juveniles can stay with the parents until the start of the next breeding season, but should be removed if the parents show signs of re-nesting as the parents are not tolerant of the juveniles presence. Minimum Group Size: Single birds. [Birds used in conservation and education programs are often maintained as single individuals. Whenever possible, a bird of the opposite sex should also be kept even if just for companionship as seriemas are generally social birds.] Maximum Group Size: one male& one female Compatible in Mixed Species Exhibits: Varies Comments: Seriemas can be exhibited with a wide variety of bird and mammal species, but can only be exhibited as pairs or single birds. Seriemas are hunters, and small fledglings of any species will be consumed if the opportunity presents itself. In mixed species exhibits, seriemas should have areas in the exhibit where they feel secure, and where the other species within the exhibit cannot enter. It is critical that seriemas have areas of elevated perching where they can escape to, as well as areas of high perching for nesting. Groups of adult males (two or more birds 6 months or older) cannot be maintained due to the incompatibility of male seriemas with each other. Optimal Habitat Size: The size of seriema pens varies widely. With large pens, dimensions are not critical. Outdoor enclosures that are small in scale should be longer than they are wide. A good recommended size is 7.5 m x 5 m x 2.5 m (24.5 ft x 16 ft x 8 ft) for a pair of birds. However seriemas have lived and bred in both smaller and larger exhibits. Smaller exhibits should provide ample areas for seriemas to hide. The recommended oblong dimensions provide some exercise space, and allow the birds to distance themselves from keepers during enclosure cleaning. These size recommendations are highly ASAG Species Fact Sheet Page 4

5 dependent on the compatibility of conspecifics. Larger dimensions or separate shelters may be required for birds that have a lower degree of social compatibility. All pens, regardless of size, should have areas that permit seriemas to run, and should be high enough that birds can perch at least m (4 5 ft) off the ground. Runs should be long enough that a bird can reach full stride. Management Challenges: There are few management issues with seriemas. They are long lived birds that rarely present with medical issues. Egg ejection is perhaps the biggest issue. ADDITIONAL COMMENTS: Seriemas are listed by IUCN as Least Concern with a stable population. BirdLife International Cariama cristata. In: IUCN IUCN Red List of Threatened Species. Version < Downloaded on 11 May REFERENCES: AZA Red-legged Seriema SSP (2013). Red-legged Seriema (Cariama cristata) Care Manual. Association of Zoos and Aquariums, Silver Spring, MD. del Hoyo, J., Elliot, A., & Sargatal, J. (Eds.). (1996). Handbook of the Birds of the World: Volume 3, Hoatzin to Auks, ( ). Barcelona: Lynx Edicions. Hallager, S. (2013). North American Studbook for the red-legged seriema. Smithsonian National Zoological Park. Padget, A. E., (2010) Structure and possible function of vocalizations of captive red-legged seriemas (Cariama cristata). Retrieved from gradthes/651 COMPLETED BY: Name: Sara Hallager Date: 5/11/2014 ASAG Species Fact Sheet Page 5